.auto .aright{
    width: 190px;
    height: 420px;
    float: left;
    margin-left: 10px;
    position: relative;
    overflow: hidden;
}
.auto .aright img{
    width: 190px;
    height: 132px;
}
.auto .aright>a{
    width: 20px;
    height: 40px;
    color:#fff;
    background-color:rgba(0,0,0,.3);
    text-align: center;
    line-height: 40px;
    position:absolute;
    top:50%;
    transform: translateY(-50%);
    text-decoration: none;
}
.auto .aright ul{
    width: 200px;
    height: 600px;
    display: none;
    float: left;

}
.auto .aright ul li{
    width: 200px;
    margin-bottom: 12px;
    float: left;
}
.auto .aright>a.leftBtn{
    display: none;
    left: 0;
}
.auto .aright>a.rightBtn{
    display: none;
    right: 0;
}
.auto .aright:hover a.leftBtn{
    display: block;
}
.auto .aright:hover a.rightBtn{
    display: block;
}
.auto .aright .active{
    display: block;
}